EP0590295A1 - Device for shutting and opening a turning catch bolt of a door opener pursued by zero signal current - Google Patents

Device for shutting and opening a turning catch bolt of a door opener pursued by zero signal current Download PDF

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Publication number
EP0590295A1
EP0590295A1 EP93113371A EP93113371A EP0590295A1 EP 0590295 A1 EP0590295 A1 EP 0590295A1 EP 93113371 A EP93113371 A EP 93113371A EP 93113371 A EP93113371 A EP 93113371A EP 0590295 A1 EP0590295 A1 EP 0590295A1
Authority
EP
European Patent Office
Prior art keywords
locking lever
locking
electromagnet
lever
stop
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP93113371A
Other languages
German (de)
French (fr)
Other versions
EP0590295B1 (en
Inventor
Fritz Helmut Dipl.-Ing. Fuss
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Fritz Fuss GmbH and Co
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Fritz Fuss GmbH and Co
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Application filed by Fritz Fuss GmbH and Co filed Critical Fritz Fuss GmbH and Co
Publication of EP0590295A1 publication Critical patent/EP0590295A1/en
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Publication of EP0590295B1 publication Critical patent/EP0590295B1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0046—Electric or magnetic means in the striker or on the frame; Operating or controlling the striker plate
    • E05B47/0047—Striker rotating about an axis parallel to the wing edge
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/1043—Swinging
    • Y10T292/1075—Operating means
    • Y10T292/1082—Motor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/54—Trippers
    • Y10T292/564—Swinging bolt, swinging detent
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/68—Keepers
    • Y10T292/696—With movable dog, catch or striker
    • Y10T292/699—Motor controlled

Definitions

  • the invention relates to a locking / unlocking device for a swing latch of a closed-current door opener with a locking lever for the swing latch, which is controlled by an electromagnet.
  • the swivel latch is movable when the electromagnet is de-energized and the door in question can be opened. If the magnet of the closed-circuit electric strike is live, the locking lever is locked by the action of the electromagnet, so that a closed door cannot be opened. If, on the other hand, the circuit is switched off or interrupted in the event of a power failure, the swivel latch is released so that the door in question can be opened and closed as desired.
  • the invention has for its object to provide a locking / release device of the type mentioned, which reliably ensures release of the swivel trap even if a person exerts strong pressure on the swivel trap before switching off or interrupting the magnetic current.
  • a locking lever is arranged between the electromagnet and the locking lever, that the locking lever is designed as a two-armed pivoting lever and is pivoted axially parallel to the locking lever, that one arm of the locking lever is designed as an armature of the electromagnet and the other arm with a stop is provided for engagement with the locking lever, and that the effective contact surface between the locking lever and the stop is designed so that even under continuous pressure of the locking lever on the stop at the time of a supply interruption of the electromagnet, a wedge-like displacement effect on the stop by the locking lever.
  • the invention has the advantage that with a single movable part, the pivotable locking lever, in combination with the locking lever, a reliable locking / unlocking of the swivel latch is ensured. If the electromagnet is de-energized, jamming of the interacting parts is impossible. Especially in the event of a panic, when constant pressure is exerted on the swivel latch, the locking lever is released immediately when the power is interrupted.
  • the stop consists of a rotatably mounted bushing. In this way, the locking lever can roll on the stop, so that the frictional forces are minimized.
  • the locking lever In order to prevent the locking lever from being briefly moved from the locked position into the open position by manipulation, for example by impact on the lock, it is expedient that the locking lever is spring-biased in the direction of the locked position.
  • Another preferred embodiment of the invention is that the two arms of the locking lever are aligned substantially perpendicular to each other, and that the bearing point of the locking lever is located at the intersection of the two arms. In this way you get a space-saving arrangement that can be easily installed in a door opener housing.
  • 9 denotes a door opener housing in which all components are arranged. To make the figures clear, those are door opener parts not reproduced or described, which are not directly related to the locking / unlocking device of a swivel latch 21.
  • the pivot trap 21 is mounted in a known manner to be deflectable about a pivot axis 22 lying in the plane of the drawing. From the locked position shown in the figure, it can be brought into the release position by pivoting it out of the drawing plane.
  • the locking / release device further comprises an electromagnet 23 and an axially parallel to the locking lever 25 pivotally mounted locking lever 24.
  • the locking lever 24 is formed with two arms, one arm being designed as an armature 26 of the electromagnet 23 and on the other arm 27 a stop 28 for engagement is arranged with the locking lever 25.
  • FIG. 1 shows the locked position of the locking lever 25 and the locking lever 24, in which the armature 26 rests directly on the electromagnet 23 and the stop 28 is located in the pivoting path of the locking lever 25.
  • the electromagnet 23 holds the locking lever 24 in the position shown, so that a pivoting movement of the locking lever 25 in the direction of the arrow into its release position and thus a deflection of the pivot latch 21 are excluded.
  • Figure 2 shows the position of the locking lever 24 in the de-energized state of the electromagnet 23.
  • a second spring 36 acts on the locking lever 24 against the first spring 32 in such a way that it is positioned in an intermediate position when the magnet 23 is de-energized. He can then pivot slightly towards the electromagnet 23 and the blocking position or towards the housing wall 37 away from the electromagnet 23 into the release position. In the intermediate position, the armature 26 is located between the electromagnet 23 and the housing wall 37 without touching the electromagnet 23 and the housing wall 37.
  • the arm of the securing lever 24 forming the armature 26 runs essentially parallel to the longitudinal wall of the housing and the arm 27 carrying the stop 28 is oriented essentially horizontally transversely to the longitudinal wall of the housing.
  • the armature 26 is biased by a spring 34 into the blocking position in which it rests on the electromagnet 23.
  • the stop 28 consists of a rotatably mounted bushing 30.
  • the locking lever is pivotally mounted in the connection point of its two arms via a pin 29 parallel to the locking lever 25.
  • the bush 30 and the free end of the locking lever 25 cooperate in such a way that a displacement effect of the locking lever 25 is exerted on the bush 30.
  • the cylinder jacket of the bush 30 deflects the bush 30 in the manner of a wedge gear, the friction being minimized by the bush rolling off.

Landscapes

  • Lock And Its Accessories (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)

Abstract

Es wird eine Sperr-/Freigabevorrichtung für eine Schwenkfalle eines Ruhestrom-Türöffners mit einem Sperrhebel für die Schwenkfalle beschrieben, der von einem Elektromagneten (23) gesteuert wird. Um zuverlässig eine Freigabe der Schwenkfalle zu gewährleisten, auch wenn eine Person noch vor dem Abschalten bzw. Unterbrechen des Magnetstroms starken Druck auf die Schwenkfalle ausübt, ist zwischen dem Elektromagneten und dem Sperrhebel (25) ein Sicherungshebel (24) angeordnet. Dieser ist zweiarmig ausgebildet, wobei ein Arm mit einem Anschlag zum Eingriff mit dem Sperrhebel versehen ist und der andere Arm als Anker des Elektromagneten vorgesehen ist. Die wirksame Berührungsfläche zwischen dem Sperrhebel (25) und dem Anschlag (28) ist so ausgebildet, daß eine keilartige Verdrängungswirkung auf den Anschlag (28) durch den Sperrhebel (25) erfolgt. <IMAGE>A locking / unlocking device for a swing latch of a closed-current door opener with a locking lever for the swing latch is described, which is controlled by an electromagnet (23). A safety lever (24) is arranged between the electromagnet and the locking lever (25) in order to ensure reliable release of the swivel latch even if a person exerts strong pressure on the swivel latch before switching off or interrupting the magnetic current. This is designed with two arms, one arm being provided with a stop for engagement with the locking lever and the other arm being provided as the armature of the electromagnet. The effective contact surface between the locking lever (25) and the stop (28) is designed so that a wedge-like displacement effect on the stop (28) takes place by the locking lever (25). <IMAGE>

Description

Die Erfindung betrifft eine Sperr-/Freigabevorrichtung für eine Schwenkfalle eines Ruhestrom-Türöffners mit einem Sperrhebel für die Schwenkfalle, der von einem Elektromagneten gesteuert wird.The invention relates to a locking / unlocking device for a swing latch of a closed-current door opener with a locking lever for the swing latch, which is controlled by an electromagnet.

Bekanntlich wird bei Ruhestrom-Türöffnern im Unterschied zu Türöffnern mit Arbeitsstromfunktion die Schwenkfalle im stromlosen Zustand des Elektromagneten beweglich und die betreffende Tür kann geöffnet werden. Steht der Magnet des Ruhestrom-Türöffners unter Spannung, wird der Sperrhebel durch die Wirkung des Elektromagneten arretiert, so daß eine geschlossene Tür nicht geöffnet werden kann. Wird dagegen der Stromkreis ausgeschaltet oder bei Stromausfall unterbrochen, wird die Schwenkfalle freigegeben, so daß die betreffende Tür beliebig auf- und zugemacht werden kann.As is known, in the case of closed-circuit electric strikes, in contrast to electric strikes with an open-circuit function, the swivel latch is movable when the electromagnet is de-energized and the door in question can be opened. If the magnet of the closed-circuit electric strike is live, the locking lever is locked by the action of the electromagnet, so that a closed door cannot be opened. If, on the other hand, the circuit is switched off or interrupted in the event of a power failure, the swivel latch is released so that the door in question can be opened and closed as desired.

Derartige Ruhestrom-Türöffner arbeiten sehr zuverlässig. In Ausnahmefällen jedoch, in welchen eine Person noch vor dem Abschalten bzw. Unterbrechen des Magnetstroms starken Druck auf die Schwenkfalle ausübt, besteht die Gefahr, daß eine Verklemmung der Hebelmechanik auftrifft, welche eine Freigabe der Schwenkfalle verhindert.Quiescent current door openers of this type work very reliably. In exceptional cases, however, in which a person exerts strong pressure on the swivel latch even before the magnetic current is switched off or interrupted, there is a risk of the lever mechanism jamming, which prevents the swivel latch from being released.

Der Erfindung liegt die Aufgabe zugrunde, eine Sperr-/Freigabevorrichtung der Eingangs genannten Art zu schaffen, welche auch dann zuverlässig eine Freigabe der Schwenkfalle gewährleistet, wenn eine Person noch vor dem Abschalten bzw. Unterbrechen des Magnetstroms starken Druck auf die Schwenkfalle ausübt.The invention has for its object to provide a locking / release device of the type mentioned, which reliably ensures release of the swivel trap even if a person exerts strong pressure on the swivel trap before switching off or interrupting the magnetic current.

Diese Aufgabe wird dadurch gelöst, daß zwischen dem Elektromagnet und dem Sperrhebel ein Sicherungshebel angeordnet ist, daß der Sicherungshebel als zweiarmiger Schwenkhebel ausgebildet und achsparallel zum Sperrhebel schwenkbar gelagert ist, daß ein Arm des Sicherungshebels als Anker des Elektromagneten ausgebildet und der andere Arm mit einem Anschlag zum Eingriff mit dem Sperrhebel versehen ist, und daß die wirksame Berührungsfläche zwischen dem Sperrhebel und dem Anschlag so ausgebildet ist, daß auch unter ununterbrochenem Druck des Sperrhebels auf den Anschlag zum Zeitpunkt einer Versorungsunterbrechung des Elektromagneten eine keilartige Verdrängungswirkung auf den Anschlag durch den Sperrhebel erfolgt.This object is achieved in that a locking lever is arranged between the electromagnet and the locking lever, that the locking lever is designed as a two-armed pivoting lever and is pivoted axially parallel to the locking lever, that one arm of the locking lever is designed as an armature of the electromagnet and the other arm with a stop is provided for engagement with the locking lever, and that the effective contact surface between the locking lever and the stop is designed so that even under continuous pressure of the locking lever on the stop at the time of a supply interruption of the electromagnet, a wedge-like displacement effect on the stop by the locking lever.

Die Erfindung hat den Vorteil, daß mit einem einzigen bewegbaren Teil, dem verschwenkbaren Sicherungshebel, in Kombination mit dem Sperrhebel eine zuverlässige Sperre-/Freigabe der Schwenkfalle sichergestellt ist. Im stromlosen Zustand des Elektromagneten ist ein Verklemmen der zusammenwirkenden Teile ausgeschlossen. Insbesondere in einem Panikfall, wenn ununterbrochen starker Druck auf die Schwenkfalle ausgeübt wird, wird der Sperrhebel bei Stromunterbrechung sofort freigegeben.The invention has the advantage that with a single movable part, the pivotable locking lever, in combination with the locking lever, a reliable locking / unlocking of the swivel latch is ensured. If the electromagnet is de-energized, jamming of the interacting parts is impossible. Especially in the event of a panic, when constant pressure is exerted on the swivel latch, the locking lever is released immediately when the power is interrupted.

Eine bevorzugte Weiterbildung der Erfindung besteht darin, daß der Anschlag aus einer drehbar gelagerten Buchse besteht. Auf diese Weise kann der Sperrhebel auf dem Anschlag abrollen, so daß die Reibungskräfte minimiert werden.A preferred development of the invention is that the stop consists of a rotatably mounted bushing. In this way, the locking lever can roll on the stop, so that the frictional forces are minimized.

Um zu verhindern, daß der Sicherungshebel durch Manipulation, beispielsweise durch Schlageinwirkung auf das Schloß, kurzzeitig aus der Sperrlage in die Offenlage gebracht werden kann, ist es zweckmäßig, daß der Sicherungshebel in Richtung auf die Sperrlage federnd vorgespannt ist.In order to prevent the locking lever from being briefly moved from the locked position into the open position by manipulation, for example by impact on the lock, it is expedient that the locking lever is spring-biased in the direction of the locked position.

Eine weitere bevorzugte Ausgestaltung der Erfindung besteht darin, daß die beiden Arme des Sicherungshebels im wesentlichen senkrecht zueinander ausgerichtet sind, und daß sich der Lagerpunkt des Sicherungshebels im Kreuzungspunkt der beiden Arme befindet. Auf diese Weise erhält man eine raumsparende Anordnung, die auf einfache Weise in ein Türöffnergehäuse eingebaut werden kann.Another preferred embodiment of the invention is that the two arms of the locking lever are aligned substantially perpendicular to each other, and that the bearing point of the locking lever is located at the intersection of the two arms. In this way you get a space-saving arrangement that can be easily installed in a door opener housing.

Nachfolgend wird die Erfindung anhand eines in der Zeichnung dargestellten Ausführungsbeispieles weiter beschrieben.

Figur 1
zeigt schematisch einen Querschnitt durch einen Ruhestrom-Türöffner mit bestromtem Elektromagnet und
Figur 2
zeigt schematisch einen Querschnitt durch einen Ruhestrom-Türöffner mit unbestromtem Elektromagnet.
The invention is described below with reference to an embodiment shown in the drawing.
Figure 1
shows schematically a cross section through a quiescent current door opener with energized electromagnet and
Figure 2
shows schematically a cross section through a closed-circuit electric strike with de-energized electromagnet.

In den Figuren ist mit 9 ein Türöffnergehäuse bezeichnet, in welchem alle Komponenten angeordnet sind. Um die Figuren übersichtlich zu gestalten, sind diejenigen Türöffnerteile nicht wiedergegeben bzw. beschrieben, welche nicht unmittelbar mit der Sperr-/Freigabevorrichtung einer Schwenkfalle 21 im Zusammenhang stehen.In the figures, 9 denotes a door opener housing in which all components are arranged. To make the figures clear, those are door opener parts not reproduced or described, which are not directly related to the locking / unlocking device of a swivel latch 21.

Die Schwenkfalle 21 ist auf bekannte Weise um eine in der Zeichenebene liegende Schwenkachse 22 auslenkbar gelagert. Aus der in der Figur dargestellten Sperrposition kann sie durch Verschwenkung aus der Zeichenebene heraus in die Freigabeposition gebracht werden.The pivot trap 21 is mounted in a known manner to be deflectable about a pivot axis 22 lying in the plane of the drawing. From the locked position shown in the figure, it can be brought into the release position by pivoting it out of the drawing plane.

Sie wird von einem Sperrhebel 25 beaufschlagt, dessen Achse 31 senkrecht zur Zeichenebene verläuft. Er ist mit einer Feder 32 gegen die Schwenkfalle 21 vorgespannt.It is acted upon by a locking lever 25, the axis 31 of which extends perpendicular to the plane of the drawing. It is biased by a spring 32 against the swivel latch 21.

Die Sperr-/Freigabevorrichtung umfaßt ferner einen Elektromagneten 23 sowie einen achsparallel zum Sperrhebel 25 schwenbar gelagerten Sicherungshebel 24. Der Sicherungshebel 24 ist zweiarmig ausgebildet, wobei der eine Arm als Anker 26 des Elekromagneten 23 ausgebildet ist und am anderen Arm 27 ein Anschlag 28 zum Eingriff mit dem Sperrhebel 25 angeordnet ist. Die Figur 1 zeigt die Sperrlage des Sperrhebels 25 und des Sicherungshebels 24, in welcher der Anker 26 unmittelbar am Elektromagneten 23 anliegt und sich der Anschlag 28 im Schwenkweg des Sperrhebels 25 befindet. Im bestromten Zustand hält der Elektromagnet 23 den Sicherungshebel 24 in der gezeigten Position, so daß eine Schwenkbewegung des Sperrhebels 25 in Pfeilrichtung in seine Freigabeposition und damit eine Auslenkung der Schwenkfalle 21 ausgeschlossen sind.The locking / release device further comprises an electromagnet 23 and an axially parallel to the locking lever 25 pivotally mounted locking lever 24. The locking lever 24 is formed with two arms, one arm being designed as an armature 26 of the electromagnet 23 and on the other arm 27 a stop 28 for engagement is arranged with the locking lever 25. FIG. 1 shows the locked position of the locking lever 25 and the locking lever 24, in which the armature 26 rests directly on the electromagnet 23 and the stop 28 is located in the pivoting path of the locking lever 25. In the energized state, the electromagnet 23 holds the locking lever 24 in the position shown, so that a pivoting movement of the locking lever 25 in the direction of the arrow into its release position and thus a deflection of the pivot latch 21 are excluded.

Figur 2 zeigt die Position des Sicherungshebels 24 im unbestromten Zustand des Elektromagneten 23. Eine zweite Feder 36 wirkt auf den Sicherungshebel 24 gegen die erste Feder 32 in der Weise, daß er im stromlosen Zustand des Magneten 23 in einer Zwischenlage positioniert ist. Er kann dann leicht in Richtung Elektromagnet 23 und Sperrlage oder Richtung Gehäusewand 37 vom Elektromagneten 23 weg in die Freigabestellung schwenken. In der Zwischenlage befindet sich der Anker 26 zwischen dem Elektromagneten 23 und der Gehäusewand 37 ohne den Elektromagneten 23 und die Gehäusewand 37 zu berühren.Figure 2 shows the position of the locking lever 24 in the de-energized state of the electromagnet 23. A second spring 36 acts on the locking lever 24 against the first spring 32 in such a way that it is positioned in an intermediate position when the magnet 23 is de-energized. He can then pivot slightly towards the electromagnet 23 and the blocking position or towards the housing wall 37 away from the electromagnet 23 into the release position. In the intermediate position, the armature 26 is located between the electromagnet 23 and the housing wall 37 without touching the electromagnet 23 and the housing wall 37.

Der den Anker 26 bildende Arm des Sicherungshebels 24 verläuft im wesentlichen parallel zur Gehäuselängswand und der den Anschlag 28 tragende Arm 27 ist im wesentlichen horizontal quer zur Gehäuselängswand ausgerichtet. Der Anker 26 wird durch eine Feder 34 in die Sperrposition vorgespannt, in welcher er am Elektromagneten 23 anliegt. Der Anschlag 28 besteht aus einer drehbar gelagerten Buchse 30. Der Sicherungshebel ist im Verbindungspunkt seiner beiden Arme über einen Stift 29 achsparallel zum Sperrhebel 25 schwenkbar gelagert.The arm of the securing lever 24 forming the armature 26 runs essentially parallel to the longitudinal wall of the housing and the arm 27 carrying the stop 28 is oriented essentially horizontally transversely to the longitudinal wall of the housing. The armature 26 is biased by a spring 34 into the blocking position in which it rests on the electromagnet 23. The stop 28 consists of a rotatably mounted bushing 30. The locking lever is pivotally mounted in the connection point of its two arms via a pin 29 parallel to the locking lever 25.

Wird der Elektromagnet 23 stromlos, so wird der Anker 26 nicht mehr festgehalten. Bei Druck auf die Schwenkfalle 21, selbst wenn der Druck bereits vor der Stromabschaltung bestand, drückt das freie Ende des Sperrhebels 25 die Buchse 30 unter Verschwenkung des Sicherungshebels 24 gemäß Pfeil 35 weg, so daß der Sperrhebel 25 der Schwenkfalle 21 ungehindert nach links in die Freigabeposition ausweichen kann.If the electromagnet 23 is de-energized, the armature 26 is no longer held. When pressure is applied to the swivel latch 21, even if the pressure already existed before the power was switched off, the free end of the locking lever 25 pushes the socket 30 away by pivoting the locking lever 24 according to arrow 35, so that the locking lever 25 of the swivel latch 21 can move freely into the left Release position can dodge.

Die Buchse 30 und das freie Ende des Sperrhebels 25 wirken in der Weise zusammen, daß eine Verdrängungswirkung des Sperrhebels 25 auf die Buchse 30 ausgeübt wird. Durch den Zylindermantel der Buchse 30 erfolgt die Auslenkung der Buchse 30 in der Art eines Keilgetriebes, wobei die Reibung durch ein Abrollen der Buchse minimiert wird.The bush 30 and the free end of the locking lever 25 cooperate in such a way that a displacement effect of the locking lever 25 is exerted on the bush 30. The cylinder jacket of the bush 30 deflects the bush 30 in the manner of a wedge gear, the friction being minimized by the bush rolling off.

Für den Fall, daß der Sicherungshebel 24 erst zu einem Zeitpunkt freigegeben wird, wenn bereits eine Person versucht, durch starken Druck auf die Schwenkfalle 21 den Türöffner bzw. die zugehörige Tür zu öffnen, ist es nicht erforderlich, daß der Druck nach dem Unterbrechen der Versorgungsspannung des Elektromagneten nachgelassen oder vollständig weggenommen werden muß. Auch unter diesen Umständen ist eine Verklemmung ausgeschlossen und der Angriffspunkt des Sperrhebels 25 an der Buchse 30 durchläuft eine Bahn, welche eine Blockierung ausschließt.In the event that the safety lever 24 is only released at a time when there is already a person tries to open the door opener or the associated door by applying strong pressure to the swivel latch 21, it is not necessary that the pressure has to be released or completely removed after the supply voltage to the electromagnet has been interrupted. Even under these circumstances, jamming is excluded and the point of application of the locking lever 25 on the bushing 30 passes through a path which prevents blocking.

Claims (6)

Sperr-/Freigabevorrichtung für eine Schwenkfalle eines Ruhestrom-Türöffners mit einem Sperrhebel für die Schwenkfalle, der von einem Elektromagneten gesteuert wird,
dadurch gekennzeichnet,
daß zwischen dem Elektromagnet (23) und dem Sperrhebel (25) ein Sicherungshebel (24) angeordnet ist, daß der Sicherungshebel (24) als zweiarmiger Schwenkhebel ausgebildet und achsparallel zum Sperrhebel (25) schwenkbar gelagert ist, daß ein Arm des Sicherungshebels (24) als Anker (26) des Elektromagneten (23) ausgebildet und der andere Arm (27) mit einem Anschlag (28) zum Eingriff mit dem Sperrhebel (25) versehen ist, und daß die wirksame Berührungsfläche zwischen dem Sperrhebel (25) und dem Anschlag (28) so ausgebildet ist, daß auch unter ununterbrochenem Druck des Sperrhebels (25) auf den Anschlag (28) zum Zeitpunkt einer Versorgungsunterbrechung des Elektromagneten (23) eine keilartige Verdrängungswirkung auf den Anschlag (28) durch den Sperrhebel (25) erfolgt.Locking / releasing device for a swing latch of a closed-current door opener with a locking lever for the swing latch, which is controlled by an electromagnet,
characterized by
that a safety lever (24) is arranged between the electromagnet (23) and the locking lever (25), that the safety lever (24) is designed as a two-armed swivel lever and is pivotally mounted axially parallel to the locking lever (25), that one arm of the safety lever (24) designed as an armature (26) of the electromagnet (23) and the other arm (27) is provided with a stop (28) for engagement with the locking lever (25), and that the effective contact surface between the locking lever (25) and the stop ( 28) is designed so that even under continuous pressure of the locking lever (25) on the stop (28) at the time of a supply interruption of the electromagnet (23) a wedge-like displacement effect on the stop (28) by the locking lever (25). Sperr-/Freigabevorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß der Anschlag (28) aus einer drehbar gelagerten Buchse (30) besteht.Locking / releasing device according to claim 1,
characterized by
that the stop (28) consists of a rotatably mounted bushing (30). Sperr-/Freigabevorrichtung nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß der Sicherungshebel (24) in Richtung auf die Sperrlage mit einer ersten Feder vorgespannt ist.Locking / releasing device according to claim 1 or 2,
characterized by
that the locking lever (24) is biased towards the locking position with a first spring. Sperr-/Freigabevorrichtung nach Anspruch 3,
dadurch gekennzeichnet,
daß eine zweite Feder (36) vorhanden ist, welche gegen die erste Feder (34) gerichtet ist und auf den Sicherungshebel (24) in der Weise wirkt, daß er im stromlosen Zustand des Elektromagneten in einer Zwischenlage positioniert ist, so daß er nach Bedarf in Richtung Elektromagnet (32) und damit Sperrlage, oder in Richtung Freigabe schwenken kann.Locking / releasing device according to claim 3,
characterized by
that a second spring (36) is present which is directed against the first spring (34) and acts on the locking lever (24) in such a way that it is positioned in an intermediate position when the electromagnet is de-energized, so that it is as required can pivot towards the electromagnet (32) and thus the blocking position, or towards the release. Sperr-/Freigabevorrichtung nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet,
daß die beiden Arme des Sicherungshebels (24) im wesentlichen senkrecht zueinander ausgerichtet sind, und daß sich der Lagerpunkt des Sicherungshebels im Verbindungspunkt seiner beiden Arme befindet.Locking / releasing device according to one of the preceding claims,
characterized by
that the two arms of the locking lever (24) are aligned substantially perpendicular to each other, and that the bearing point of the locking lever is in the connection point of its two arms. Sperr-/Freigabevorrichtung nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet,
daß der Arm (27) auf Zug beansprucht wird.Locking / releasing device according to one of the preceding claims,
characterized by
that the arm (27) is subjected to tension.
EP93113371A 1992-09-02 1993-08-20 Device for shutting and opening a turning catch bolt of a door opener pursued by zero signal current Expired - Lifetime EP0590295B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4229239A DE4229239C1 (en) 1992-09-02 1992-09-02
DE4229239 1992-09-02

Publications (2)

Publication Number Publication Date
EP0590295A1 true EP0590295A1 (en) 1994-04-06
EP0590295B1 EP0590295B1 (en) 2000-03-01

Family

ID=6467021

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93113371A Expired - Lifetime EP0590295B1 (en) 1992-09-02 1993-08-20 Device for shutting and opening a turning catch bolt of a door opener pursued by zero signal current

Country Status (5)

Country Link
US (1) US5439262A (en)
EP (1) EP0590295B1 (en)
AT (1) ATE190108T1 (en)
CA (1) CA2105322C (en)
DE (2) DE4229239C1 (en)

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Also Published As

Publication number Publication date
DE4229239C1 (en) 1993-09-23
ATE190108T1 (en) 2000-03-15
DE59309961D1 (en) 2000-04-06
CA2105322C (en) 1996-08-06
CA2105322A1 (en) 1994-03-03
EP0590295B1 (en) 2000-03-01
US5439262A (en) 1995-08-08

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